Mechanism for use in inserting fastenings.



R. F. McFEELY.

MECHANISM FOR USE IN INSERTING FASTENINGS. APPLICATION FILED SEPT. 29. 1909. RENEWED APR. 2, 1914.

Patented Apr. 13, 1915.

THE NORRIS PETERS c0., PHOTG-LITHQ, WASHINGTON, D. C.

-ll,ll353,955.

pnrrnio s ra rns na rnn "lemon nominn r. MQIEEELY, or BEVERLY, ivrnssaoriosnrrs, Assrenon ro oivrrnn srron iraoriiivnnv COMPANY, or rn'rnnsoiv, new annsnr, A oonrona'rroiv or new JERSEY.

Specification of "Letters Patent.

MECHANISM FOR USE IN INSERTI NG FAST ENINGS.

Patented Apr. 13, ll9ll5.

Original application filed April 19, 1909, Serial No. 490,848. Divided and this application filed. September 29, 1909, Serial No. 520,149. Renewed April 2. 1914.

provements in Mechanisms for Use in Inserting Fastenings, of which the following description, in connectionwith the accompanying drawings, is a specification,like reference characters on the drawings indicating like parts in the several figures.

This invention relates to mechanisms for handling fastenings and particularly to the tack supplying mechanism of. a tacking apparatus.

The invention is embodied in a mechanism which forms part of a pulling-overv machine of the type shown in United StatesLetters Patent No. 663,777 and it has for an object to insure greater reliability in the delivery of tacks to the inserting point. In that machine the tacks are supplied tothe tack holders, from which they are to be driven, while the holders are in a position retracted from the work. Theseholders make a quick movement into tack inserting position and it is during this movement or at the instant of its abrupt termination that tacks are sometimes thrown out of the tack pockets or rise therein far enough so that they are not properly expelledand inserted intothe work by the descent of the drivers. This is perhaps because the tacks stand in the pockets in an inclined position so that they shall be driven on a slant inwardly toward the median line of the last. a

A main feature of this invention consists in novel means for preventing the tacks being thrown out of their pockets during the quickly effected inward movement of the tack holders to tack inserting position. The

tacks are delivered to the tack pockets through a conductor section which moves inwardly with the tack holders and which, in accordance with the illustrated embodiment of this feature of the invention, is provided at its foot with an extension adapted to overlie the mouth of the tack pocket. Positioning means for the conductor section comprises a stop arranged to be engaged by it when the tack holder is moved to its outer, tack .receiving position. This stop swings the conductor to position it with its tack channel in delivering relation to the tack Serial No. 829,136.

pocket. A spring pressed plunger is arranged to swing the conductor section into position with the extension covering the tack pocket as soon as the tack holder leaves tack receiving position.

The invention includes also details of construction and combinations of parts which will be understood in connection with the illustrated embodiment thereof which will be described, and then the invention will be pointed out in the claims.

Figure'l is a perspective view of parts directly concerned with the illustrative embodiment of the invention; Fig. 2 is a side elevation partly in section of a sufficient portion of the pulling-over machine to show the application of this invention thereto; Fig. 3 shows a relation of'the parts after they have left tack receiving position.

The tack arm 2 having the tack holder 4:. at its lower endis swung fromthe frame at 5 and is actuated inwardly and outwardly by means guided in the frame at 6 and which may be understood by reference to said prior patent. The tacks are delivered from a conductor 8, the lower end of which is clamped to the frame, into a conductor section 10 which moves inwardly with thetack arm to which it is pivotallyconnected at 12.v The machine frame carries an adjustable stop 13 which is engaged by the heel end of the section 10 when the tack arm is swung outwardly to tack receiving position against the stop Hand by this engagement the conductor section is turned about its pivot 12 to raise its lower end and put the tack passage thereof into delivering relation to the pocket of the tack holder, as shown in Figs. 1 and 2, so that a tack coming down the conductor is freely delivered into the tack pocket. The

6 and preclude the possibility of a tack be ing thrown out of the pocket. Gravity may be relied upon to cause the covering movement of the conductor section but in order to prevent loose swinging of the conductor section 12 a spring pressed plunger 16 is mounted in the tack arm andprovided with improvements in'pulling-over machines and a head of substantial extent which may depend below the. pivotl12 and, by its engagement at both sides of the pivot, steady the section effectively. The upper face of the lip 15 is inclined. andlocated close to the ends of the'tack driver 18 so that the latter shall slide down the incline when it starts to descend and rocky the conductor backwardly out of the path of the driver into the tack pocket. r

The operation of the several parts will be I understocd from the foregoing description of their censa'uca n and arrangement;

l This application is a division of applicaeon sennaaeoers, filed April 19, 1909, for

in the present drawings are shown certain novel features of the last supporting and upper clamping and wiping; mechanism of the machine the claims for which are made .inthe'earlier application. 7

Having explained the nature of this in- =ven'tionand described a preferred embodi- States:' 7 r 1 A dflne offthe' class described hav thereof, I claim asnew and desire to secure by Letters Patent of the United ing] tack inserting mechanism including a driver, tack supplying means, atack block adapted to hold ack forthein'serting action oi thec lrivei" thereon and movablefrom IeCeTlX Tl Ilg rel'atlon to the supplying means into delivering relation to the driver, and

, additional meansrereading the tack can;

'tainefd the holder during such movement.

2. Am chineof the class described havin' g,' in combination, a "tack driver, "a tack holder "movable between tack receiving and tack driving positions and having a tack pocket, andia'dditional 'ineans presenting a cover over the tack pocketat the terminationof the movement of the holder into tack-driving pcsitionto prevent the, tack from being thrownfrom the'pocke t and havmg -armament independent of the moveinent of the holder to uncover the pocket for] the action of the [driver on the tack. A machine ornie class described havin g'cpmbieation, V a tack holder "movable between tack receiviii and tack deliverin v 2: A V e positions having a tack pocket, a driver, a tack conductor section movable with the ta k home we: time ear-shining said confiductor gsfection automatically from a posi- .55

arm with its enamel 'in delivering relation to the tack pecket to a fi'osition in which fan end face of'the con uctor covers the mouth o'fithetack p escape o tthe aeujve'rea tack.

L A machine 77 or the class described havoc ket to prevent the ing, in combination, a "tack holder movable 'ing, in combination, a tack to operate.

5. A machine of the class described having, in combination, a tack holder having a tack pocket, a driver, a conductor, means to hold the conductor in delivering relation to the pocket, yielding means to move the conductor into position to prevent the tack being thrown out of the pocket and arranged to permit the driver to move the conductor aside to-allow the driver to enter the tack pocket.

6. A machine of the class described, having, in combination, a tack holder, a tack driver, the conductor 10 having the extension 15, the member 16 for yieldingly moving the conductor into position for the extension to cover the tack pocket, and the the tack pocket, s'aid, 1nael1ine having pro vision for automatically actuating the conductor for the purposes stated.

'8. A machine of the class described, hav pocket, a pivoted conductor movable from tack delivering relation to tack covering relation to the pocket, and a yielding member arranged to maintain the conductor in a predetermined relatien to the pocket.

9. A machine of the class described having, in combination, a tack tube, a pivotally mounted conductor section movable from and toward position [to receive a tack from the tube, and means for automatically turning said section about its pivot to center it relatively to thetnbe and maintain its predetermined angular position during the tack delivering operation.

' In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

-. RONALD F. MGFEELY.

- \Vitnsses:

ARTHUR L. RUSSELL,

H. Hora.

Cepi sib f this iiate nt inejybe obtained fcrffiv'e cents each, by addressing" the Commissioner of Patents, Washington, n30. 

